Magnetocrystalline anisotropy of MnF2 deduced from static torque |
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| Authors: | U Gäfvert L Lundgren P Nordblad B Westerstrandh O Beckman |
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| Institution: | Department of Solid State Physics Institute of Technology, Box 534 S-751 21 Uppsala, Sweden |
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| Abstract: | The first anisotropy constant K1 as well as the differential susceptibility ΔX = Xχ - X∥ of MnF2 has been determined from static torque measurements. The temperature range was for K1 4.2 K to 66 K and for ΔX 4.2 K to 300 K. The result for K1 is in good agreement with values obtained from antiferromagnetic resonance experiments. In order to explain the differential susceptibility in the paramagnetic region, it was found necessary to take the g-factor anisotropy into account. |
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